640202290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{17159}}^1$

素因数の和:17227

約数の個数: 64

約数和(自身を含む): 1452971520

約数和(自身を除く): 812769230

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 41, 65, 70, 82, 91, 130, 182, 205, 287, 410, 455, 533, 574, 910, 1066, 1435, 2665, 2870, 3731, 5330, 7462, 17159, 18655, 34318, 37310, 85795, 120113, 171590, 223067, 240226, 446134, 600565, 703519, 1115335, 1201130, 1407038, 1561469, 2230670, 3122938, 3517595, 4924633, 7035190, 7807345, 9145747, 9849266, 15614690, 18291494, 24623165, 45728735, 49246330, 64020229, 91457470, 128040458, 320101145, 640202290]

約数ペア:

[(1, 640202290), (2, 320101145), (5, 128040458), (7, 91457470), (10, 64020229), (13, 49246330), (14, 45728735), (26, 24623165), (35, 18291494), (41, 15614690), (65, 9849266), (70, 9145747), (82, 7807345), (91, 7035190), (130, 4924633), (182, 3517595), (205, 3122938), (287, 2230670), (410, 1561469), (455, 1407038), (533, 1201130), (574, 1115335), (910, 703519), (1066, 600565), (1435, 446134), (2665, 240226), (2870, 223067), (3731, 171590), (5330, 120113), (7462, 85795), (17159, 37310), (18655, 34318)]